EP 0218355 B1 19930818 - RESIN COMPOSITION, OPAQUE FILM AND METHOD OF PREPARING SAME
Title (en)
RESIN COMPOSITION, OPAQUE FILM AND METHOD OF PREPARING SAME
Publication
Application
Priority
US 77208785 A 19850903
Abstract (en)
[origin: US4632869A] A resin combination comprising a thermoplastic polymer matrix having dispersed therein as distinct phases, a multiplicity of small spherical solid particles of polybutylene terephthalate, the resin combination in opaque biaxially oriented polymeric film form and the same oriented film structure having on at least one surface thereof a void-free thermoplastic skin layer. The process for preparing a biaxially oriented opaque film comprising providing said resin combination, forming an unoriented film of said resin combination and biaxially orienting said film to an extent sufficient to opacify the same. The process also provides for the opaque film having a void-free thermoplastic skin layer on at least one surface thereof.
IPC 1-7
IPC 8 full level
B32B 27/20 (2006.01); C08J 5/18 (2006.01); C08L 23/02 (2006.01); C08L 23/12 (2006.01); C08L 67/02 (2006.01)
CPC (source: EP US)
B32B 27/08 (2013.01 - US); B32B 27/20 (2013.01 - EP US); B32B 27/205 (2013.01 - EP US); B32B 27/32 (2013.01 - EP US); C08J 5/18 (2013.01 - EP US); C08K 3/22 (2013.01 - EP US); C08L 23/02 (2013.01 - EP US); C08L 23/10 (2013.01 - EP US); C08L 67/02 (2013.01 - EP US); B32B 2038/0028 (2013.01 - US); B32B 2264/0285 (2013.01 - EP US); B32B 2307/41 (2013.01 - US); B32B 2307/412 (2013.01 - US); B32B 2307/518 (2013.01 - EP US); B32B 2323/10 (2013.01 - US); C08J 2323/02 (2013.01 - EP US); Y10S 428/91 (2013.01 - EP US); Y10T 428/249978 (2015.04 - EP US); Y10T 428/249986 (2015.04 - EP US); Y10T 428/254 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE DE FR GB IT LU NL SE
DOCDB simple family (publication)
US 4632869 A 19861230; AT E93253 T1 19930915; AU 6105786 A 19870305; BR 8604184 A 19870428; CA 1282889 C 19910409; DE 3688902 D1 19930923; DE 3688902 T2 19931209; EP 0218355 A2 19870415; EP 0218355 A3 19891018; EP 0218355 B1 19930818; ES 2001288 A6 19880501; HK 1006846 A1 19990319; PH 21803 A 19880229
DOCDB simple family (application)
US 77208785 A 19850903; AT 86306643 T 19860828; AU 6105786 A 19860811; BR 8604184 A 19860901; CA 516693 A 19860825; DE 3688902 T 19860828; EP 86306643 A 19860828; ES 8601561 A 19860902; HK 98105985 A 19980622; PH 34210 A 19860901